| Threat Alias | Number of Incidents |
| Packed.Generic.233 [Symantec] | 65 |
| Mal/EncPk-IV [Sophos] | 44 |
| Trojan-Downloader.Win32.FakeRean [Ikarus] | 43 |
| Mal/EncPk-IF [Sophos] | 34 |
| Win32/IRCBot.worm.variant [AhnLab] | 27 |
| Trojan:Win32/Alureon.BK [Microsoft] | 21 |
| Win-Trojan/Xema.variant [AhnLab] | 20 |
| Infostealer.Banker.C [Symantec] | 19 |
| Trojan-Downloader.Win32.Small [Ikarus] | 17 |
| TrojanDownloader:Win32/FakeRean [Microsoft] | 17 |
| TrojanDownloader:Win32/FakeRean.gen!C [Microsoft] | 17 |
| Hoax.Win32.Renos [Ikarus] | 15 |
| Hoax.Win32.Renos.vchc [Kaspersky Lab] | 15 |
| Trojan Horse [Symantec] | 15 |
| Trojan-PSW.Banker [PC Tools] | 15 |
| Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 14 |
| PWS:Win32/Zbot.gen!B [Microsoft] | 14 |
| Packed.Generic.218 [Symantec] | 13 |
| Mal/Generic-A [Sophos] | 12 |
| Packed.Win32.Tdss.x [Kaspersky Lab] | 12 |
| Trojan.Win32.Winwebsec [Ikarus] | 12 |
| Trojan-Downloader.Win32.Small.jmp [Kaspersky Lab] | 12 |
| Trojan:Win32/Sisproc [Microsoft] | 9 |
| Win-Trojan/Downloader.19456.LR [AhnLab] | 9 |
| Trojan:Win32/Alureon.gen!J [Microsoft] | 7 |
| Downloader.MisleadApp [Symantec] | 6 |
| HeurEngine.MaliciousPacker [PC Tools] | 6 |
| PWS:Win32/Zbot.PG [Microsoft] | 6 |
| Trojan:Win32/Ertfor.A [Microsoft] | 6 |
| Trojan-Downloader.Win32.FraudLoad.eyw [Kaspersky Lab] | 6 |
| Mal/EncPk-IV, Mal/EncPk-IF [Sophos] | 5 |
| PWS:Win32/Zbot.gen!R [Microsoft] | 5 |
| Trojan-Spy.Win32.Zbot [Ikarus] | 5 |
| Win-Trojan/Fakealert.238642 [AhnLab] | 5 |
| Mal/FakeAV-BX, Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 4 |
| Mal/FakeAV-BX, Mal/FakeAV-BT, Mal/EncPk-IF [Sophos] | 4 |
| Virus.Packed.Win32.Tdss [Ikarus] | 4 |
| Mal/EncPk-HH [Sophos] | 3 |
| Mal/FakeAV-BX, Mal/FakeAV-BT, Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 3 |
| Trojan.Win32.Wantvi [Ikarus] | 3 |
| Trojan-Downloader.Win32.Wzhyk.ab [Kaspersky Lab] | 3 |
| Trojan-Downloader.Win32.Wzhyk.ah [Kaspersky Lab] | 3 |
| Mal/EncPk-HP [Sophos] | 2 |
| Mal/EncPk-IF, Mal/Basine-C [Sophos] | 2 |
| Mal/EncPk-IV, Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 2 |
| Packed.Win32.Krap.t [Kaspersky Lab] | 2 |
| PWS:Win32/Zbot.gen!W [Microsoft] | 2 |
| PWS:Win32/Zbot.M [Microsoft] | 2 |
| Tool:Win32/Dnschanger.K [Microsoft] | 2 |
| Troj/Agent-JEX [Sophos] | 2 |
| Trojan.Adclicker [PC Tools] | 2 |
| Trojan.Adclicker [Symantec] | 2 |
| Trojan.Win32.Agent.bugg [Kaspersky Lab] | 2 |
| Trojan:Win32/Winwebsec [Microsoft] | 2 |
| Trojan-Downloader.Win32.FraudLoad.ezw [Kaspersky Lab] | 2 |
| Trojan-Downloader.Win32.Renos [Ikarus] | 2 |
| Trojan-Downloader.Win32.Wzhyk.c [Kaspersky Lab] | 2 |
| Trojan-Downloader.Win32.Wzhyk.m [Kaspersky Lab] | 2 |
| Trojan-Downloader.Wzhyk!sd6 [PC Tools] | 2 |
| Trojan-Dropper.Agent [Ikarus] | 2 |
| Trojan-Dropper.Win32.Agent.alfn [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.vag [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.vne [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.vsd [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.vvi [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.whz [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.wxb [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.wyi [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.wyu [Kaspersky Lab] | 2 |
| Trojan-Spy.Win32.Zbot.yiq [Kaspersky Lab] | 2 |
| TrojanSpy:Win32/Zbot.gen!C [Microsoft] | 2 |
| VirTool:Win32/Delf.O [Microsoft] | 2 |
| Win-Trojan/Zbot.67072.D [AhnLab] | 2 |
| Backdoor.Win32.IRCBot.mhg [Kaspersky Lab] | 1 |
| Backdoor.Win32.TDSS.kh [Kaspersky Lab] | 1 |
| Backdoor.Win32.UltimateDefender.htd [Kaspersky Lab] | 1 |
| Backdoor.Win32.UltimateDefender.ieg [Kaspersky Lab] | 1 |
| Downloader [Symantec] | 1 |
| Dropper/Agent.46454 [AhnLab] | 1 |
| Dropper/Agent.76410 [AhnLab] | 1 |
| Generic FakeAlert.d!gen [McAfee] | 1 |
| Mal/Basine-C [Sophos] | 1 |
| Mal/Basine-C, Mal/EncPk-IF, Mal/EncPk-IV, Mal/EncPk-HH [Sophos] | 1 |
| Mal/Behav-314, Mal/Fakecor-B, Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 1 |
| Mal/EncPk-HG, Mal/Zlob-G [Sophos] | 1 |
| Mal/EncPk-IV, Mal/Basine-C [Sophos] | 1 |
| Mal/FakeAV-AD, Mal/EncPk-IV [Sophos] | 1 |
| Mal/FakeAV-BT, Mal/FakeAV-BX, Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 1 |
| Mal/Generic-A, Mal/FakeAV-BT, Mal/FakeAV-BX, Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 1 |
| Mal/TDSSPk-M [Sophos] | 1 |
| PWS.Win32 [Ikarus] | 1 |
| Suspicious.Graybird.1 [Symantec] | 1 |
| Troj/Pushdo-Gen, Mal/EncPk-IF, Mal/EncPk-HH [Sophos] | 1 |
| Trojan.FakeAV [PC Tools] | 1 |
| Trojan.FakeAV [Symantec] | 1 |
| Trojan.Generic [PC Tools] | 1 |
| Trojan.Win32.Agent [Ikarus] | 1 |
| Trojan.Win32.Crypt.bdb [Kaspersky Lab] | 1 |
| Trojan.Win32.FakeRean [Ikarus] | 1 |
| Trojan.Win32.FraudPack.odm [Kaspersky Lab] | 1 |